Oral anti-leakage secretion drainage device for digestive endoscopy diagnosis and treatment

Abstract

The invention belongs to the technical field of oral secretion drainage, and aims to solve the technical problems that an oral secretion part of an existing oral secretion drainage device overflows through a gap between a mask and the outside of the lips of a patient, and a drainage tube is prone to moving in the drainage process. The invention provides an oral cavity leakage prevention secretion drainage device for digestive endoscopy diagnosis and treatment, which comprises a negative pressure drainage bottle and a drainage tube, and also comprises a lip shielding mechanism, an oral cavity supporting mechanism, a tooth occlusion mechanism and a driving mechanism, and is characterized in that the lip shielding mechanism sleeves the outer side surface of one end, far away from the negative pressure drainage bottle, of the drainage tube; the oral cavity supporting mechanism is arranged on the front side of the lip shielding mechanism, the oral cavity supporting mechanism is connected with the lip shielding mechanism, the tooth occlusion mechanism is movably connected with the oral cavity supporting mechanism, and the driving mechanism is connected with the lip shielding mechanism and the tooth occlusion mechanism. Oral secretions can be prevented from leaking out, and the position of the drainage tube can be kept unchanged.

Description

Technical Field

[0001] The present invention belongs to the technical field of oral secretion drainage, and particularly relates to an oral anti-leakage secretion drainage device for digestive endoscopy diagnosis and treatment. Background Art

[0002] Digestive endoscopy diagnosis and treatment (such as gastroscopy and colonoscopy examinations) are important means for the diagnosis and treatment of digestive system diseases. During the diagnosis and treatment process, the patient needs to maintain a specific position (such as the left lateral position), and needs to swallow the endoscope tube body, resulting in the inability to normally swallow or discharge oral secretions (saliva, gastric reflux fluid, etc.), which is likely to cause the following problems: Operation interference: The accumulation of secretions in the oral cavity or pharynx may contaminate the endoscopic field of view and affect the doctor's observation and operation efficiency.

[0003] Risk of aspiration: The reflux of secretions into the trachea may cause choking, aspiration pneumonia, or even asphyxia, especially for the elderly, unconscious, or anesthetized patients.

[0004] Patient discomfort: The retention of secretions will cause the patient to feel nauseous and vomit, increasing the pain and psychological pressure during the diagnosis and treatment process.

[0005] Traditional treatment methods usually adopt manual operation or negative pressure suction to handle oral secretions. Due to manual operation, the digestive endoscopy diagnosis and treatment operation needs to be frequently interrupted, which prolongs the diagnosis and treatment time and aggravates the patient's discomfort. For the negative pressure suction method, only the suction tube is held in the mouth for oral secretion drainage, and no structure for wrapping the outside of the lips is provided, so that it is impossible to completely avoid the splashing or reflux of secretions. This not only easily causes the patient to cough, but also there is a problem that oral secretions flow out along the corners of the mouth. It not only easily dirties the hospital gown and bedsheet, which is unsightly, but also requires medical staff or family members to clean it from time to time, increasing the workload of medical staff and family members.

[0006] The utility model patent with the publication number CN 215778817 U discloses a negative pressure drainage device for oral secretions, including a drainage mechanism; the main body of the drainage mechanism is designed to be connected to a negative pressure device, and a diversion mechanism is further arranged inside the drainage mechanism, and a cleaning mechanism is arranged at the rear side of the diversion mechanism. The cleaning mechanism includes a return pipe, and the main body of the return pipe is designed as an arc-shaped pipe structure, and the return pipe is installed at the front side position of the cleaning component. Although this technical solution can fix the mask over the patient's mouth through the design of the mask to prevent most of the oral secretions from overflowing, since the face shapes of each patient are different, the mask cannot fit all patients, and thus the mask cannot completely fit the outside of each patient's lips, resulting in some oral secretions still overflowing through the gap between the mask and the outside of the patient's lips; moreover, it cannot be well bite-fixed with the teeth, making the drainage tube prone to move during the drainage process, leading to oral mucosa damage. Summary of the Invention

[0007] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an oral anti-leakage secretion drainage device for digestive endoscopy diagnosis and treatment.

[0008] To achieve the above purpose, the technical solution adopted by the present invention is: An oral anti-leakage secretion drainage device for digestive endoscopy diagnosis and treatment, including a negative pressure drainage bottle and a drainage tube connected to the bottle mouth of the negative pressure drainage bottle, further including: A lip shielding mechanism, sleeved on the outer side of the end of the drainage tube far from the negative pressure drainage bottle; An oral support mechanism, arranged on the front side of the lip shielding mechanism and connected to the lip shielding mechanism; A tooth biting mechanism, movably connected to the oral support mechanism; A driving mechanism, respectively connected to the lip shielding mechanism and the tooth biting mechanism.

[0009] Preferably, the oral support mechanism includes: Two support plates, symmetrically arranged on the front side of the lip shielding mechanism and respectively located above and below the drainage tube, and each support plate is connected to the lip shielding mechanism; Two sliding through grooves, respectively opened on the corresponding support plates along the length direction of the support plates; Two U-shaped expansion plates, respectively symmetrically arranged on the left and right sides of the two support plates, and both ends of each U-shaped expansion plate are respectively slidably connected to the two sliding through grooves on the same side; Two first restoring springs, respectively arranged inside the corresponding sliding through grooves, and both ends of each first restoring spring are respectively connected to the end of the adjacent U-shaped expansion plate.

[0010] Preferably, the lip shielding mechanism includes: A baffle plate, sleeved on the outer side surface of the drainage tube; Four moving grooves, two of which are symmetrically arranged on the rear side surface of one support plate, and the other two are symmetrically arranged on the rear side surface of the other support plate; Two U-shaped sliding plates, respectively symmetrically arranged above and below the drainage tube. Both ends of each U-shaped sliding plate are slidably connected to two moving grooves on the corresponding support plate and are connected to the driving mechanism; Two second restoring springs, respectively arranged inside the corresponding U-shaped sliding plate, and one end of each second restoring spring is connected to the U-shaped sliding plate, and the other end is connected to the rear side surface of the corresponding support plate; An adjusting unit, respectively connected to the baffle plate and the two support plates; A connecting unit, respectively connected to the two U-shaped sliding plates.

[0011] Preferably, the adjusting unit includes: Two telescopic rods, respectively vertically and symmetrically arranged between the two support plates, and the bottom and top of each telescopic rod are respectively connected to the two support plates; An airbag, annularly arranged at the outer edge of the front side surface of the baffle plate; Two ventilation pipes, respectively opened inside the corresponding telescopic rods; Two air pipes, arranged between the airbag and the corresponding telescopic rods, and one end of each air pipe is connected to the corresponding ventilation pipe, and the other end is connected to the airbag; Two third restoring springs, respectively wound around the corresponding telescopic rods, and one end of each third restoring spring is connected to the bottom of the upper support plate, and the other end is connected to the top of the lower support plate.

[0012] Preferably, the connecting unit includes two symmetrically arranged connecting components, and each connecting component includes: A sliding cylinder, with both ends open, arranged between the two U-shaped sliding plates; An installation block, arranged between the sliding cylinder and the baffle plate, and the installation block is respectively connected to the sliding cylinder and the baffle plate; Two connecting rods, respectively slidably connected to the sliding cylinder, and the end of each connecting rod away from the sliding cylinder is respectively connected to the adjacent U-shaped sliding plate.

[0013] Preferably, the tooth occlusion mechanism includes: Two occlusion grooves, respectively opened at the top of the upper support plate and the bottom of the lower support plate; Two sliding grooves, respectively opened at the bottom of the corresponding occlusion groove; Two sliding plates, respectively slidably arranged inside the corresponding occlusion groove, and each sliding plate is connected to the driving mechanism; Two moving blocks are respectively connected to corresponding sliding plates, and each moving block is slidably connected to a corresponding sliding groove; Four limiting plates, where every two limiting plates are symmetrically arranged inside corresponding engaging grooves respectively, and each limiting plate is connected to a driving mechanism.

[0014] Preferably, the driving mechanism includes: A first driving mechanism, arranged inside two support plates, and connected to two U-shaped sliding plates and two sliding plates; A second driving mechanism, arranged inside the oral cavity support mechanism, and connected to four limiting plates.

[0015] Preferably, the first driving mechanism includes two first driving components, each first driving component is respectively arranged inside a corresponding support plate, and each first driving component includes: Two U-shaped placement grooves are opened inside the support plate, and each U-shaped placement groove communicates with two corresponding moving grooves; Two guiding grooves are symmetrically opened on the inner wall of the corresponding engaging groove, and each guiding groove communicates with the corresponding U-shaped placement groove respectively; Two traction ropes, both of Y-shaped structure, two branch ropes of each traction rope are respectively arranged inside the corresponding U-shaped placement groove, and the end parts of the two branch ropes are respectively connected to the two end parts of the corresponding U-shaped sliding plate, the main rope of each traction rope is arranged inside the corresponding guiding groove, and the end parts of the main rope are both connected to the corresponding sliding plate.

[0016] Preferably, the second driving mechanism includes two second driving components, each second driving component is respectively arranged inside a corresponding support plate, and each second driving component includes: Two pneumatic telescopic rods are symmetrically arranged on the inner walls on both sides of the corresponding engaging groove respectively, and the telescopic end of each pneumatic telescopic rod is connected to the corresponding limiting plate; Two U-shaped pneumatic channels are symmetrically opened inside the corresponding support plates respectively, the two U-shaped pneumatic channels are respectively located on both sides of the corresponding moving block, and one end of each U-shaped pneumatic channel communicates with the sliding groove, the other end communicates with the engaging groove, and is communicated with the inside of the sleeve of the corresponding pneumatic telescopic rod.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) Through the design of the lip shielding mechanism of the present invention, the outer part of the lips of different patients can be fully surrounded by the inflation and expansion of the airbag, avoiding the leakage of oral secretions during the drainage process; (2) Through the design of the oral cavity support mechanism of the present invention, by automatically adjusting the distance between the two U-shaped expansion plates, it can match and adapt to the oral diameters of different patients, well support the oral cavity of the patient, and keep the oral cavity in an open state all the time; (3) Through the design of the tooth occlusion mechanism, the present invention can fix the upper row of teeth and the lower row of teeth to the drainage tube respectively during the drainage process, avoiding the problem of damage to the oral mucosa caused by the random movement of the drainage tube during the drainage process. (4) Through the combined design of the driving mechanism, the lip shielding mechanism and the tooth occlusion mechanism, the present invention can automatically drive the shielding plate to move towards the lip direction by simply moving the tooth occlusion sliding plate downward, initially fitting with the outside of the patient's lip, and automatically fixing the teeth on both sides by using the two side limiting plates. At the same time, it can also synchronously inflate the airbag, and the inflation of the airbag can tightly shield the outside of the lips of different patients, avoiding the leakage of oral secretions during the drainage process, improving the fixing efficiency of the device to the patient's mouth, and saving the drainage time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional view of the oral anti-leakage secretion drainage device for digestive endoscopy diagnosis and treatment provided by the embodiment of the present invention; Figure 2 It is a three-dimensional view of the oral anti-leakage secretion drainage device for digestive endoscopy diagnosis and treatment provided by the embodiment of the present invention from another perspective; Figure 3 It is a three-dimensional view of the oral anti-leakage secretion drainage device for digestive endoscopy diagnosis and treatment provided by the embodiment of the present invention from another perspective; Figure 4 It is a schematic connection structure diagram of the lip shielding mechanism, the oral support mechanism and the tooth occlusion mechanism in the embodiment of the present invention; Figure 5 It is a schematic connection structure diagram of the lip shielding mechanism, the oral support mechanism and the tooth occlusion mechanism in the embodiment of the present invention from another perspective; Figure 6 It is a schematic connection structure diagram of the lip shielding mechanism, the oral support mechanism and the tooth occlusion mechanism in the embodiment of the present invention in the state of removing the U-shaped expansion plate; Figure 7 It is a schematic connection structure diagram of the lip shielding mechanism, the oral support mechanism and the tooth occlusion mechanism in the embodiment of the present invention in the state of removing the support plate; Figure 8 It is a schematic connection structure diagram of the support plate, the first driving mechanism and the sliding plate in the embodiment of the present invention; Figure 9 It is a schematic connection structure diagram of the lip shielding mechanism, the oral support mechanism and the tooth occlusion mechanism in the embodiment of the present invention in the state of removing the shielding plate and the U-shaped expansion plate; Figure 10 It is a sectional view of the lip shielding mechanism, the oral support mechanism and the tooth occlusion mechanism in the embodiment of the present invention; Figure 11 is Figure 10 a partial enlarged schematic view of part A in Figure 12 is another sectional view of the lip occlusion mechanism, oral cavity support mechanism and tooth occlusion mechanism in the embodiment of the present invention; Figure 13 is Figure 12 a partial enlarged schematic view of part B in Figure 14 is the front sectional view of the lip occlusion mechanism, oral cavity support mechanism and tooth occlusion mechanism in the embodiment of the present invention; Figure 15 is Figure 14 a partial enlarged schematic view of part C in In the figure: 1, negative pressure drainage bottle; 2, drainage tube; 3, lip occlusion mechanism; 31, baffle plate; 32, moving groove; 33, U-shaped sliding plate; 34, second restoring spring; 35, adjusting unit; 351, telescopic rod; 352, airbag; 353, ventilation duct; 354, trachea; 355, third restoring spring; 36, connecting unit; 361, sliding cylinder; 362, mounting block; 363, connecting rod; 4, oral cavity support mechanism; 41, support plate; 42, sliding through groove; 43, U-shaped expansion plate; 44, first restoring spring; 5, tooth occlusion mechanism; 51, occlusion groove; 52, sliding groove; 53, sliding plate; 54, moving block; 55, limiting plate; 6, driving mechanism; 61, first driving mechanism; 611, U-shaped placement groove; 612, guiding groove; 613, traction rope; 62, second driving mechanism; 621, pneumatic telescopic rod; 622, U-shaped pneumatic channel. Detailed implementation manners

[0019] Next, in combination with the Figures 1 to 15 embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0020] As Figures 1 to 15 shown, the embodiment of the present invention provides a digestive endoscopy diagnosis and treatment oral anti-external leakage secretion drainage device, including a negative pressure drainage bottle 1 and a drainage tube 2 connected to the bottle mouth of the negative pressure drainage bottle 1; the negative pressure drainage bottle 1 in this embodiment adopts an existing conventional negative pressure drainage bottle 1, as long as it can generate negative pressure to attract oral secretions; the drainage tube 2 adopts an existing medical specification drainage tube 2. This embodiment does not involve the improvement of the self-structures of the negative pressure drainage bottle 1 and the drainage tube 2.

[0021] The oral secretion leakage prevention and drainage device further includes a lip shielding mechanism 3, an oral cavity supporting mechanism 4, a tooth biting mechanism 5 and a driving mechanism 6. The lip shielding mechanism 3 is sleeved on the outer side of the end of the drainage tube 2 away from the negative pressure drainage bottle 1; the oral cavity supporting mechanism 4 is arranged on the front side of the lip shielding mechanism 3 and is connected to the lip shielding mechanism 3; the tooth biting mechanism 5 is movably connected to the oral cavity supporting mechanism 4; the driving mechanism 6 is respectively connected to the lip shielding mechanism 3 and the tooth biting mechanism 5.

[0022] In the embodiment of the present invention, the oral cavity supporting mechanism 4 includes two support plates 41, two sliding through grooves 42, two U-shaped expansion plates 43 and two first restoring springs 44. The two support plates 41 are symmetrically arranged on the front side of the lip shielding mechanism 3 and are respectively located above and below the drainage tube 2, and each support plate 41 is connected to the lip shielding mechanism 3; the two sliding through grooves 42 are respectively opened on the corresponding support plate 42 along the length direction of the support plate 41; the two U-shaped expansion plates 43 are respectively symmetrically arranged on the left and right sides of the two support plates 41, and both ends of each U-shaped expansion plate 43 are slidably connected to the two sliding through grooves 42 on the same side; in the specific design of this embodiment, the U-shaped expansion plate 43 is a U-shaped plate with an arc structure. Through the design of the arc structure, it can be well matched with the patient's oral cavity, can well support the inner wall of the oral cavity at the lips, and because it is a smooth structure, it will not damage the oral mucosa during the support process; the two first restoring springs 44 are respectively arranged inside the corresponding sliding through grooves 42, and both ends of each first restoring spring 44 are respectively connected to the ends of the adjacent U-shaped expansion plate 43. When the first restoring spring 44 is in a natural state, the U-shaped expansion plates 43 connected to its two ends are both located inside the sliding through grooves 42, and at this time, the distance between the two U-shaped expansion plates 43 is greater than the natural opening width of the lips of general patients. Through the design of the first restoring spring 44 and the U-shaped expansion plate 43, when the support plate 41 and the U-shaped expansion plate 43 enter the oral cavity and support the lips, the two U-shaped expansion plates 43 will be squeezed inward and the first restoring spring 44 will be compressed, and the first restoring spring 44 will also give a reverse thrust to the two U-shaped expansion plates 43, so that the U-shaped expansion plates 43 form a firm support with the inner wall of the lips.

[0023] In the embodiment of the present invention, the lip shielding mechanism 3 includes a shielding plate 31, four moving grooves 32, two U-shaped sliding plates 33, and two second restoring springs 34. The shielding plate 31 is sleeved on the outer side surface of the drainage tube 2. Two of the moving grooves 32 are symmetrically formed on the rear side surface of one of the support plates 41, and the other two moving grooves 32 are symmetrically formed on the rear side surface of the other support plate 41. Specifically, the two moving grooves are located above and below the sliding through groove 42 provided on the corresponding support plate 41. The two U-shaped sliding plates 33 are respectively symmetrically arranged above and below the drainage tube 2. The two ends of each U-shaped sliding plate 33 are respectively slidably connected to the two moving grooves 32 on the corresponding support plate 41 and are connected to the driving mechanism 6. The two second restoring springs 34 are respectively arranged inside the corresponding U-shaped sliding plates 33, and one end of each second restoring spring 34 is connected to the U-shaped sliding plate 33, and the other end is connected to the rear side surface of the corresponding support plate 41. When the second restoring spring 34 is in the natural state, the end of the U-shaped sliding plate 33 is just located inside the moving groove. When the U-shaped sliding plate 33 moves forward along the moving groove, the second restoring spring 34 will be compressed. The adjusting unit 35 is respectively connected to the shielding plate 31 and the two support plates 41. The connecting unit 36 is respectively connected to the two U-shaped sliding plates 33.

[0024] In the embodiment of the present invention, the adjusting unit 35 includes two telescopic rods 351, an airbag 352, two ventilation pipes 353, two trachea 354, and two third restoring springs 355. The two telescopic rods 351 are respectively vertically and symmetrically arranged between the two support plates 41. The bottom and top of each telescopic rod 351 are respectively connected to the two support plates 41. In the specific design, the structure of the telescopic rod 351 is the existing structure of a sleeve, a movable rod, and a piston sleeved. Under the action of an external force, the movable rod and the piston provided at the bottom of the movable rod can move up and down inside the sleeve. The airbag 352 is annularly arranged at the outer edge of the front side surface of the shielding plate 31. The two ventilation pipes 353 are respectively formed inside the corresponding telescopic rods 351. Specifically, each ventilation pipe 353 is vertically and communicatively formed on the movable rod and the piston, and the bottom end of each ventilation pipe 353 penetrates the bottom of the piston and is connected to the area below the piston inside the sleeve. The two trachea 354 are arranged between the airbag 352 and the corresponding telescopic rod 351, and one end of each trachea 354 is connected to the corresponding ventilation pipe 353. Specifically, one end of each trachea 354 penetrates the movable rod and is connected to the top of the corresponding ventilation pipe 353; the other end is connected to the airbag 352. The two third restoring springs 355 are respectively wound around the corresponding telescopic rods 351, and one end of each third restoring spring 355 is connected to the bottom of the upper support plate 41, and the other end is connected to the top of the lower support plate 41. When the third restoring spring 355 is in the natural state, the movable rod and the piston are located at the uppermost position inside the sleeve.

[0025] When the patient bites the two - tooth biting mechanism 5 and finally drives the two support plates 41 to move towards each other, it will synchronously push the telescopic rod 351 to shorten its length, that is, push the movable rod, drive the piston to move downward inside the sleeve, compress the air in the area below the piston in the sleeve, and make the compressed air enter the trachea 354 through their respective ventilation pipes 353, so that the airbag inflates and expands to tightly block the outside of the lips of different patients, avoiding the leakage of oral secretions during the drainage process.

[0026] In the embodiment of the present invention, the connection unit 36 includes two symmetrically arranged connection components. Each connection component includes a sliding cylinder 361, a mounting block 362, and two connecting rods 363. The two ends of the sliding cylinder 361 are open, and the sliding cylinder 361 is arranged between the two U - shaped sliding plates 33; the mounting block 362 is arranged between the sliding cylinder 361 and the shielding plate 31, and the mounting block 362 is respectively connected to the sliding cylinder 361 and the shielding plate 31; through the design of the connection unit 36, not only can the shielding plate 31 and the two support plates 41 be connected through the mounting block 362, but also through the sliding connection design of the connecting rod 363 and the sliding cylinder 361, it can ensure that the two support plates 41 can move towards each other or in the approaching direction, without affecting the vertical displacement of the support plates 41; the two connecting rods 363 are respectively slidably connected to the sliding cylinder 361, and one end of each connecting rod 363 away from the sliding cylinder 361 is respectively connected to the adjacent U - shaped sliding plate 33. When the two support plates 41 move in the approaching direction, it will synchronously drive the two connecting rods 363 to slide towards each other along the sliding cylinder 361.

[0027] In the embodiment of the present invention, the tooth - biting mechanism 5 includes two biting grooves 51, two sliding grooves 52, two sliding plates 53, two moving blocks 54, and four limiting plates 55. The two biting grooves 51 are respectively opened at the top of the upper support plate 41 and the bottom of the lower support plate 41, specifically, the biting groove 51 is opened at the front end of the support plate 41; the two sliding grooves 52 are respectively opened at the bottom of the corresponding biting groove 51; the two sliding plates 53 are respectively slidably arranged inside the corresponding biting groove 51, and each sliding plate 53 is connected to the driving mechanism 6; the two moving blocks 54 are respectively connected to the corresponding sliding plates 53, and each moving block 54 is slidably connected to the corresponding sliding groove 52; when the second return spring 34 is in the natural state, the bottom of the moving block 54 is just located inside the sliding groove 52. When the sliding plate 52 is stressed and moves along the inner wall of the biting groove 51 towards the sliding groove 52, it will synchronously make the moving block 54 move along the inner wall of the sliding groove 52 towards the bottom of the sliding groove 52. Among them, every two limiting plates 55 are symmetrically arranged inside the corresponding biting groove 51, and each limiting plate 55 is connected to the driving mechanism 6.

[0028] When the support plate 41 enters the patient's oral cavity, and the inner part of the patient's lips is supported by the two support plates 41 and the two U-shaped expansion plates 43, at this time, the patient's upper and lower rows of teeth are respectively located in the corresponding occlusion grooves. Then, the patient's upper and lower rows of teeth bite together, causing the sliding plate 53 to be forced to move along the inner wall of the occlusion groove 51 towards the sliding groove 52, and simultaneously causing the moving block 54 to move along the inner wall of the sliding groove 52 towards the bottom of the sliding groove 52. When the moving block 54 moves to the bottom of the sliding groove 52, at this time, the upper and lower rows of teeth continue to bite together, and the two support plates 41 are forced, causing the two support plates 41 to move towards each other, synchronously pushing the telescopic rod 351 to shorten in length, that is, pushing the movable rod, driving the piston to move downward inside the sleeve, compressing the air in the area below the piston inside the sleeve, and enabling the compressed air to enter the trachea 354 through their respective ventilation pipes 353, causing the airbag to inflate and expand to tightly block the outside of the lips of different patients, preventing oral secretions from leaking during the drainage process.

[0029] In the embodiment of the present invention, the driving mechanism 6 includes a first driving mechanism 61 and a second driving mechanism 62. The first driving mechanism 61 is arranged inside the two support plates 41 and is connected to the two U-shaped sliding plates 33 and the two sliding plates 53; the second driving mechanism 62 is arranged inside the oral cavity support mechanism 4 and is connected to the four limiting plates 55.

[0030] Specifically in the design, the first driving mechanism 61 includes two first driving components. Each first driving component is respectively arranged inside the corresponding support plate 41. Each first driving component includes two U-shaped placement grooves 611, two guiding grooves 612, and two traction ropes 613. The two U-shaped placement grooves 611 are opened inside the support plate 41, and each U-shaped placement groove 611 communicates with the corresponding two moving grooves 32; the two guiding grooves 612 are symmetrically opened on the inner wall of the corresponding occlusion groove 51, and each guiding groove 612 communicates with the corresponding U-shaped placement groove 611 respectively; the two traction ropes 613 are both Y-shaped structures. The two branch ropes of each traction rope 613 are respectively arranged inside the corresponding U-shaped placement groove 611, and the end parts of the two branch ropes are respectively connected to the two end parts of the corresponding U-shaped sliding plate 33. The main ropes of each traction rope 613 are arranged inside the corresponding guiding groove 612, and the end parts of the main ropes are all connected to the corresponding sliding plate 53.

[0031] When the upper and lower teeth of the patient are respectively located in the corresponding occlusion grooves, and the upper and lower teeth of the patient bite with each other, when the sliding plate 53 is stressed and moves along the inner wall of the occlusion groove 51 towards the sliding groove 52, it will drive the traction rope 613 to move downward, synchronously pulling the U-shaped sliding plate 33 to move along the moving groove 32 towards the support plate 41, and then pulling the connecting rod 363 and the mounting block 362 to move forward synchronously, thereby pulling the baffle plate 31 to move towards the position of the patient's lips, so that the baffle plate 31 fits against the outside of the patient's lips. Then when the moving block 54 moves to the bottom of the sliding groove 52, at this time the upper and lower teeth continue to bite with each other, and the two support plates 41 are stressed, which will cause the two connecting rods 363 to slide towards each other along the sliding cylinder 361, and then drive the two support plates 41 to move towards each other, synchronously pushing the length of the telescopic rod 351 to shorten, that is, pushing the movable rod, driving the piston to move downward inside the sleeve, compressing the air in the area below the piston inside the sleeve, and making the compressed air enter the trachea 354 through their respective ventilation pipes 353, so that the airbag inflates and expands to tightly block the outside of the lips of different patients, avoiding the leakage of oral secretions during the drainage process.

[0032] In the embodiment of the present invention, the second driving mechanism 62 includes two second driving components, each second driving component is respectively arranged inside the corresponding support plate, each second driving component includes two pneumatic telescopic rods 621 and two U-shaped pneumatic channels 622, the two pneumatic telescopic rods 621 are respectively symmetrically arranged on the inner walls of both sides of the corresponding occlusion groove 51, the pneumatic telescopic rod 621 in this embodiment is a conventional pneumatic telescopic rod, and the telescopic end of each pneumatic telescopic rod 621 is connected to the corresponding limiting plate 55; the two U-shaped pneumatic channels 622 are respectively symmetrically opened inside the corresponding support plate 41, the two U-shaped pneumatic channels 622 are respectively located on both sides of the corresponding moving block 54, and one end of each U-shaped pneumatic channel 622 is communicated with the sliding groove 52, the other end is communicated with the occlusion groove 51, and is communicated with the inside of the sleeve of the corresponding pneumatic telescopic rod 621.

[0033] When the upper and lower teeth of the patient bite with each other, making the sliding plate 53 stressed and move along the inner wall of the occlusion groove 51 towards the sliding groove 52, synchronously making the moving block 54 move along the inner wall of the sliding groove 52 towards the bottom of the sliding groove 52, squeezing the gas in the sliding groove 52 to enter the inside of the pneumatic telescopic rod 621 through the U-shaped pneumatic channel 622, pushing the length of the telescopic end of the pneumatic telescopic rod to become longer, and then pushing the two limiting plates 55 to move towards each other, fixing the teeth in the occlusion groove front and back, and avoiding the random movement of the drainage tube during the drainage process.

[0034] Application case: When a patient undergoes digestive endoscopy and it is necessary to drain the oral secretions of the patient during the diagnosis and treatment process, by placing the front end of the drainage tube 2 and the support plate 41 inside the patient's oral cavity, and supporting the inside of the patient's lips with two support plates 41 and two U-shaped expansion plates 43, at this time, the upper and lower rows of teeth of the patient are respectively located in the corresponding occlusion grooves, and the upper and lower rows of teeth of the patient bite together. When the sliding plate 53 is stressed and moves along the inner wall of the occlusion groove 51 towards the sliding groove 52, it will drive the traction rope 613 to move downward, synchronously pulling the U-shaped sliding plate 33 to move along the moving groove 32 towards the support plate 41, and then pulling the connecting rod 363 and the mounting block 362 to move forward synchronously, thereby pulling the baffle plate 31 to move towards the position close to the patient's lips, so that the baffle plate 31 fits against the outside of the patient's lips. Then, when the moving block 54 moves to the bottom of the sliding groove 52, at this time, the upper and lower rows of teeth continue to bite together, and the two support plates 41 are stressed, which will cause the two connecting rods 363 to slide towards each other along the sliding cylinder 361, and then drive the two support plates 41 to move towards each other, which will synchronously push the length of the telescopic rod 351 to shorten, that is, push the movable rod, drive the piston to move downward inside the sleeve, compress the air in the area below the piston inside the sleeve, and make the compressed air enter the trachea 354 through their respective ventilation pipes 353, so that the airbag inflates and expands to tightly block the outside of the lips of different patients, avoiding the leakage of oral secretions during the drainage process; when the upper and lower rows of teeth of the patient bite together, the sliding plate 53 is stressed and moves along the inner wall of the occlusion groove 51 towards the sliding groove 52, and at the same time, the moving block 54 moves along the inner wall of the sliding groove 52 towards the bottom of the sliding groove 52, squeezing the gas in the sliding groove 52 to enter the inside of the pneumatic telescopic rod 621 through the U-shaped pneumatic channel 622, pushing the length of the telescopic end of the pneumatic telescopic rod to become longer, and then pushing the two limit plates 55 to move towards each other, fixing the teeth in the occlusion groove back and forth, and avoiding the random movement of the drainage tube during the drainage process.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An oral anti-leakage secretion drainage device for digestive endoscopy diagnosis and treatment, comprising a negative pressure drainage bottle (1) and a drainage tube (2) connected to the bottle mouth of the negative pressure drainage bottle (1), characterized in that: Also includes: A lip shielding mechanism (3) is sleeved on the outer surface of the drainage tube (2) at one end away from the negative pressure drainage bottle (1); An oral cavity supporting mechanism (4) is arranged on the front side of the lip shielding mechanism (3) and is connected to the lip shielding mechanism (3); A tooth occlusal mechanism (5) movably connected to the oral support mechanism (4); The driving mechanism (6) is respectively connected to the lip shielding mechanism (3) and the tooth occluding mechanism (5).

2. The oral anti-leakage secretion drainage device for digestive endoscopy diagnosis and treatment according to claim 1, characterized in that: The oral support mechanism (4) comprises: Two support plates (41) are symmetrically arranged on the front side of the lip shielding mechanism (3) and are respectively located above and below the drainage tube (2), and each support plate (41) is connected to the lip shielding mechanism (3); Two sliding through grooves (42) are respectively opened on the corresponding support plates (42) along the length direction of the support plates (41); Two U-shaped expansion plates (43) are symmetrically arranged on the left and right sides of the two support plates (41), and two ends of each U-shaped expansion plate (43) are slidably connected to two sliding grooves (42) on the same side; Two first restoring springs (44) are respectively arranged inside corresponding sliding through slots (42), and two ends of each first restoring spring (44) are respectively connected to the end of an adjacent U-shaped expansion plate (43).

3. The oral anti-leakage secretion drainage device for digestive endoscopy diagnosis and treatment according to claim 2, characterized in that: The lip shielding mechanism (3) comprises: A shielding plate (31) sleeved on the outer surface of the drainage tube (2); Four movable grooves (32), two of which are symmetrically arranged on the rear side of one of the support plates (41), and the other two movable grooves (32) are symmetrically arranged on the rear side of the other support plate (41); Two U-shaped sliding plates (33) are symmetrically arranged above and below the drainage tube (2), respectively, and two ends of each U-shaped sliding plate (33) are slidably connected to two movable grooves (32) on the corresponding support plate (41), and are connected to the driving mechanism (6); Two second restoring springs (34) are respectively arranged inside the corresponding U-shaped sliding plates (33), and one end of each second restoring spring (34) is connected to the U-shaped sliding plate (33), and the other end is connected to the rear side surface of the corresponding support plate (41); An adjustment unit (35) connected to the shielding plate (31) and the two support plates (41) respectively; The connecting units (36) are respectively connected to the two U-shaped sliding plates (33).

4. The oral anti-leakage secretion drainage device for digestive endoscopy diagnosis and treatment according to claim 3, characterized in that: The regulating unit (35) comprises: Two telescopic rods (351) are respectively arranged vertically and symmetrically between the two support plates (41), and the bottom and top of each telescopic rod (351) are respectively connected to the two support plates (41); An air bag (352) is arranged in an annular manner at the outer edge of the front side of the shielding plate (31); Two ventilation pipes (353) are respectively opened inside corresponding telescopic rods (351); Two air tubes (354) are arranged between the air bag (352) and the corresponding telescopic rod (351), and one end of each air tube (354) is connected to the corresponding ventilation pipe (353), and the other end is connected to the air bag (352); Two third restoring springs (355) are respectively wound around corresponding telescopic rods (351), and one end of each third restoring spring (355) is connected to the bottom of the upper support plate (41), and the other end is connected to the top of the lower support plate (41).

5. The oral anti-leakage secretion drainage device for digestive endoscopy diagnosis and treatment according to claim 3, characterized in that: The connection unit (36) comprises two symmetrically arranged connection components, each of which comprises: A sliding cylinder (361) with openings at both ends, disposed between the two U-shaped sliding plates (33); The mounting block (362) is disposed between the sliding cylinder (361) and the shielding plate (31), and the mounting block (362) is connected to the sliding cylinder (361) and the shielding plate (31) respectively; The two connecting rods (363) are respectively slidably connected to the sliding cylinder (361), and one end of each connecting rod (363) away from the sliding cylinder (361) is respectively connected to an adjacent U-shaped sliding plate (33).

6. The oral anti-leakage secretion drainage device for digestive endoscopy diagnosis and treatment according to claim 3, characterized in that: The tooth occlusal mechanism (5) comprises: Two engaging grooves (51) are respectively formed on the top of the upper support plate (41) and the bottom of the lower support plate (41); Two sliding grooves (52) are respectively formed at the bottoms of the corresponding engaging grooves (51); Two sliding plates (53) are respectively slidably disposed inside corresponding engaging grooves (51), and each sliding plate (53) is connected to a driving mechanism (6); Two moving blocks (54) are respectively connected to corresponding sliding plates (53), and each moving block (54) is slidably connected to a corresponding sliding groove (52); Four limiting plates (55), wherein every two limiting plates (55) are symmetrically arranged inside corresponding engaging grooves (51), and each limiting plate (55) is connected to the driving mechanism (6).

7. The oral anti-leakage secretion drainage device for digestive endoscopy diagnosis and treatment according to claim 6, characterized in that: The driving mechanism (6) comprises: A first driving mechanism (61) is arranged inside the two support plates (41) and is connected to the two U-shaped sliding plates (33) and the two sliding plates (53); The second driving mechanism (62) is arranged inside the oral support mechanism (4) and is connected to the four limiting plates (55).

8. The oral cavity anti-leakage secretion drainage device for digestive endoscopy diagnosis and treatment according to claim 7, characterized in that: The first driving mechanism (61) comprises two first driving components, each of which is arranged inside a corresponding support plate (41), and each of which comprises: Two U-shaped placement grooves (611) are provided inside the support plate (41), and each U-shaped placement groove (611) is connected to two corresponding movable grooves (32); Two guide grooves (612) are symmetrically arranged on the inner wall of the corresponding engaging groove (51), and each guide groove (612) is respectively connected to the corresponding U-shaped placement groove (611); The two traction ropes (613) are both Y-shaped structures. The two branch ropes of each traction rope (613) are respectively arranged inside the corresponding U-shaped placement groove (611), and the ends of the two branch ropes are respectively connected to the two ends of the corresponding U-shaped sliding plate (33). The main rope of each traction rope (613) is arranged inside the corresponding guide groove (612), and the ends of the main rope are connected to the corresponding sliding plate (53).

9. The oral cavity anti-leakage secretion drainage device for digestive endoscopy diagnosis and treatment according to claim 7, characterized in that: The second driving mechanism (62) comprises two second driving components, each of which is arranged inside a corresponding support plate, and each of which comprises: Two pneumatic telescopic rods (621) are symmetrically arranged on the inner walls of both sides of the corresponding engaging groove (51), and the telescopic end of each pneumatic telescopic rod (621) is connected to the corresponding limiting plate (55); Two U-shaped air pressure channels (622) are symmetrically opened inside the corresponding support plates (41), and the two U-shaped air pressure channels (622) are respectively located on both sides of the corresponding moving blocks (54), and one end of each U-shaped air pressure channel (622) is connected to the sliding groove (52), and the other end is connected to the bite groove (51), and is connected to the inside of the sleeve of the corresponding air pressure telescopic rod (621).

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